package com.hmdp.service.impl;

import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONUtil;
import com.hmdp.dto.Result;
import com.hmdp.entity.ShopType;
import com.hmdp.mapper.ShopTypeMapper;
import com.hmdp.service.IShopTypeService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.hmdp.utils.RedisConstants;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

/**
 * <p>
 * 服务实现类
 * </p>
 *
 * @author Recall
 * @since 2021-12-22
 */
@Service
public class ShopTypeServiceImpl extends ServiceImpl<ShopTypeMapper, ShopType> implements IShopTypeService {

    @Resource
    private StringRedisTemplate stringRedisTemplate;

    @Override
    public Result queryTypeList() {
        String TypeCacheKey = RedisConstants.CACHE_SHOP_TYPE_KEY;
        if (stringRedisTemplate.hasKey(TypeCacheKey)) {
            String typeList = stringRedisTemplate.opsForValue().get(TypeCacheKey);
            return Result.ok(JSONUtil.toList(typeList, ShopType.class));
        }
        List<ShopType> typeList = this
                .query().orderByAsc("sort").list();
        if (typeList == null) {
            return Result.fail("查询失败");
        }
        stringRedisTemplate.opsForValue().set(TypeCacheKey, JSONUtil.toJsonStr(typeList));
        return Result.ok(typeList);
    }
}
